Metallic Grinding Wheel for Ski Sole Reproducibility
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Solution Overview
Problem
Existing ski grinding devices face challenges with reproducibility due to wear-down of grinding stones and inaccurate grinding caused by the ski's movement during the process, leading to inconsistent results.
Innovation Solution
A device with a metallic grinding wheel and a clamping system that allows for controlled relative movement between the grinding unit and the ski, featuring a sensor-regulated force mechanism and a drive system for precise movement, ensuring consistent grinding pressure and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a grinding stone is used for grinding ski soles, then the grinding process can be performed, but the grinding stone gradually wears down resulting in non-reproducible results
Solution Approach 1:
The patent changes the material parameter of the grinding wheel from traditional abrasive stone to metallic material (such as hardened steel). This parameter change makes the grinding wheel significantly more durable and resistant to wear, allowing it to maintain its geometry and grinding characteristics over extended use, thereby achieving reproducible results
Solution Approach 2:
The patent replaces the traditional abrasive grinding mechanism with a metallic grinding wheel that operates on different mechanical principles. The metallic wheel can be dressed and regenerated, substituting the consumable abrasive stone with a more durable system that maintains consistent performance
2Manufacturing precision
If the ski moves gradually into the grinding apparatus during grinding, then the grinding process can be completed, but the ski moves sideways resulting in insufficient accuracy
Solution Approach 1:
The patent inverts the traditional grinding approach by having the grinding wheel move along the stationary ski rather than the ski moving through a stationary grinding wheel. This inversion eliminates sidewise movement of the ski and allows for precise positioning and repeated grinding of the same locations
Solution Approach 2:
The patent employs preliminary positioning and clamping of the ski before the grinding process begins. The ski is securely held in place with adjustable supports that prevent movement during grinding, ensuring accurate and reproducible results
3Duration of action of moving object
If the grinding stone wears down, then grinding can continue, but the peripheral speed changes resulting in inconsistent grinding
Solution Approach 1:
The patent changes the material parameter from abrasive stone to metallic material, which fundamentally alters the wear characteristics. The metallic grinding wheel maintains its dimensional stability and rotational speed over time, preventing the speed variations that occur with traditional grinding stones
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides more reproducible and accurate ski grinding results by minimizing wear on the grinding wheel and maintaining consistent pressure, resulting in improved grinding quality compared to previous devices.
Implementation Method 1
a grinding wheel made from a metallic material
Implementation Method 2
a sensor-regulated mechanism for application of force to the ski sole during grinding
Data Source
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AI summary
A device (1) is described for the grinding of the soles of skis (3), said device is comprised of a grinding unit (5), an appliance (2) to hold/clamp the ski and a foundation (4) for the support of the grinding device (1). The grinding unit (5) comprises a grinding wheel (10) made from a metallic material, and that the grinding unit (5) and appliance (2), which holds/clamps the ski (3), in the longitudinal direction of the ski (3), is set up to make a relative movement, and the grinding wheel (10) rotates with a peripheral speed which is different from the speed of the relative movement. The relative movement is brought about either by the grinding unit (5) moving and the ski being held stationary or by the grinding unit (5) being held stationary and the ski moving.